Drought – Achieved With It?

Originally tweeted by Roger Pielke Jr. (@RogerPielkeJr) on June 14, 2021.

I was curious
So I graphed the percentage of CONUS in drought according to the US drought monitor, the data is weekly from 1/2000

https://droughtmonitor.unl.edu/CurrentMap.aspx

Here from US EPA are the same data by drought category

https://www.epa.gov/climate-indicators/climate-change-indicators-drought

And here from EPA is a longer time series, 1895-2020 for CONUS
Note: In this diagram, the top means wetter and the bottom means drier

https://www.epa.gov/climate-indicators/climate-change-indicators-drought

And here is the drought percentage (D0-D4) of the Colorado River Basin from January 2000 to date

https://droughtmonitor.unl.edu/CurrentMap.aspx

And here is the drought in the Colorado River Basin 1901-2015
via McCabe et al. 2020

https://journals.ametsoc.org/view/journals/eint/24/2/eiD200001.xml

And for a much longer perspective, here is the drought in the Colorado River Basin for the past 1800 years
McCabe et al. 2020

TL; DR
Here are the conclusions of McCabe et al. 2020
It is worth reading carefully

And here is the result of the US National Climate Assessment on the 2018 drought

https://nca2018.globalchange.gov/chapter/2/

PS
A side note
For accurately citing peer-reviewed literature and US NCA on drought trends in the 2013 Congressional Report, I received the award of being the only US researcher in history by the President’s Science Advisor (Holdren) in a White House blog post was attacked 😎

PPS
Holdren is still wrong
The IPCC, USNCA, and peer-reviewed literature they rely on are still accurate

Climate change is real and aggressive mitigation and adaptation measures make sense

The reality of climate change does not mean that scientific integrity can be ignored

/END

Oh, I think I should point out that Holdren’s false claims about me, posted on the White House website, were the basis of a subsequent Congressional investigation into me that turned my life and almost my career upside down finished
But I’m still here
And it was through these children that I understood the term of office

Originally tweeted by Roger Pielke Jr. (@RogerPielkeJr) on June 14, 2021.

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